To win a prize in a math contest, an individual must correctly fill in the blank below. (−3)(4−5)= [blank] −−−−−−(−3)(4−5)= [bla
1 answer:
You might be interested in
Answer:
"4.71" is the correct answer.
Step-by-step explanation:
As we know, 45 envelopes addressed in 2 hours then,
⇒
and, 45 in 3 hours,
⇒
Now by adding all together, we get
⇒
⇒
and multiply it by "4.71", we get
⇒
⇒
Round it "310".
So that "4.71" is the right answer.